env! macro for Cairo

Inspect environment variables at compile time.

Usage

In your Scarb.toml:

[dependencies]
env_macro = "0.1.0"

In your code:

const VERSION: usize = env!("VERSION");

Features

• Specify a default value if the environment variable is not set:

  const VERSION: usize = env!("VERSION", 1);

• Only numeric values are supported at the moment.